Cancer researchers who believe that leukemia in man, and especially in children, must somehow be caused by virusesas are similar diseases in fowl, mice, rats, cows and horsesgot new and suggestive evidence last week.
Though no one has yet been able to isolate a human leukemia virus and grow it in a test tube, one indirect way of establishing its presence is to find antibody against it. In the A.M.A. Journal, Dr. Steven O. Schwartz of Chicago's Hektoen Institute and Northwestern University reported that he had found antibody, apparently against leukemia, in a...
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